Chin strap of an athletic helmet



FIG. 1 is an isometric view of a chin strap of an athletic helmet.

FIG. 2 is a front view of a chin strap of an athletic helmet.

FIG. 3 is a rear view of a chin strap of an athletic helmet.

FIG. 4 is a left view of a chin strap of an athletic helmet.

FIG. 5 is a right view of a chin strap of an athletic helmet.

FIG. 6 is a top view of a chin strap of an athletic helmet; and,

FIG. 7 is a bottom view of a chin strap of an athletic helmet. 

CLAIM We claim the ornamental design for a chin strap of an athletic helmet, as shown and described. 